2559660007 has 4 divisors (see below), whose sum is σ = 2560118616. Its totient is φ = 2559201400.

The previous prime is 2559660001. The next prime is 2559660017. The reversal of 2559660007 is 7000669552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2559660007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559660001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220828 + ... + 232129.

It is an arithmetic number, because the mean of its divisors is an integer number (640029654).

Almost surely, 2^2559660007 is an apocalyptic number.

2559660007 is a deficient number, since it is larger than the sum of its proper divisors (458609).

2559660007 is an equidigital number, since it uses as much as digits as its factorization.

2559660007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458608.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 2559660007 is about 50593.0826002923. The cubic root of 2559660007 is about 1367.9201942589.

The spelling of 2559660007 in words is "two billion, five hundred fifty-nine million, six hundred sixty thousand, seven".